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Product Detailed Parameters
- Description：7.2 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：7.2 MHz
- Function：Enable/Disable
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：21mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-7.200-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fundamental frequency of 7.2 MHz and utilizes LVCMOS output logic levels. The device is designed for surface mount applications, featuring a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. It functions with a supply voltage of 1.8V and includes an enable/disable control pin for power management. The component supports an operating temperature range from -40°C to +85°C and maintains a frequency stability of ±50ppm.
Feature Summary
- Integrated enable/disable functionality for power optimization
- Compact 4-SMD no-lead surface mount package design
- LVCMOS output compatibility for digital interfaces
Applications
- Consumer electronics requiring low-power clock signals
- Industrial control systems operating in extended temperatures
- Communication equipment utilizing standard frequency references
Procurement Notes
Verify the specific suffix 'OE' indicates the enable feature when sourcing replacements. Confirm the package type matches the 4-SMD no-lead specification to ensure board compatibility. Check that the supply voltage requirement aligns with the 1.8V system design. Ensure the operating temperature range meets the environmental requirements of the target application.
Selection Notes
Select this component when a 7.2 MHz reference signal is required with minimal footprint. Consider the 1.8V supply constraint and LVCMOS interface compatibility. Evaluate the ±50ppm stability against system timing requirements. Verify the enable pin usage fits the power management strategy of the design.
Part Context
This model belongs to the 18QHTF21 series of surface mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6mm package. The 'OE' suffix typically denotes the inclusion of an output enable function, distinguishing it from standard variants without control pins.
Replacement Considerations
Direct substitutes include other 7.2 MHz XO components with identical 1.8V operation and 4-SMD no-lead packaging. Ensure replacement parts support LVCMOS outputs and match the ±50ppm stability specification. Verify thermal performance within the -40°C to +85°C range.
